Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed96082ce748a4c…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 14:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8497c9bc8186b542647b97a58c7c4453 SHA-1: 0ed67bb7d8d22e5764d478607e9d19a15d196b39 SHA-256: aed96082ce748a4c14a289426190d7ae5b6f2446f085fe318087c513932d4200
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a direct link to a known malicious redirector, ttraff.com. This suggests a phishing or scam attempt, likely aiming to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text related to 'Cours d assistance de direction pdf' and references wkhtmltopdf, indicating it was likely generated programmatically to appear as a document. No scripts were extracted from this sample.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=cours+d+assistance+de+direction+pdf
    • http://files.jeansbeetle.com/uploads/1/3/2/7/132740584/12dcc73c5a3eefa.pdf
    • http://files.izacshome.com/uploads/1/3/1/4/131407194/wefixasigokulef.pdf
    • http://files.highintensitytrack.com/uploads/1/3/1/3/131397938/xurovomorokupi.pdf
    • http://tojepevo.makedisciplesprogram.com/uploads/1/3/1/3/131379732/9493009.pdf
    • http://files.perthcoffeeworx.com/uploads/1/3/1/4/131483719/ddce7d6.pdf
    • https://cdn.shopify.com/s/files/1/0438/0963/6512/files/fable_2_archaeologist.pdf
    • https://cdn.shopify.com/s/files/1/0433/9390/8892/files/79254462203.pdf
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/foodsaver_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/majenajegeforaxuwel.pdf
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/wejikufigapetomubawuwux.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4103/files/woxivabopejexetotaxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/vertebrate_palaeontology_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/7715/7542/files/xudiwafuxepoximil.pdf
    • https://cdn.shopify.com/s/files/1/0435/1324/9946/files/64553603325.pdf
    • https://cdn.shopify.com/s/files/1/0436/4815/5806/files/65720360608.pdf
    • https://cdn.shopify.com/s/files/1/0434/0449/2965/files/51370638537.pdf
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/81783709593.pdf
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/famorulef.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000634a.bin
878946f2eb0a982e6edf292443deb54feeeb00a20eb1ab27bd4e038e38e21b77
pdf-font-stream PDF embedded font (sfnt) at offset 0x634A 5024 bytes
font_01_sfnt_off0000746d.bin
dd634786e377befe9125f70cf1370a26ecbaf64ccd379186abd69413183d4ebd
pdf-font-stream PDF embedded font (sfnt) at offset 0x746D 9996 bytes